Julie is 21 years older then kathy. in six years julie will be twice as old as kathy. what is the currnet ages?

• let julie's present age is x
  then kathy age = (x-21)
  after 6 yrs,
  x+6 = 2(x-21+6)
  => x+6=2x-30
  =>x=36
  thus their present ages are x and x-21
  36 and 15 years
  
• 10 years agoHelpfull: Yes(1) No(0)
• let julie's present age is x
  then kathy age = (x-21)
  after 6 yrs,
  x+6 = 2(x-21+6)
  => x+6=2x-30
  =>x=36
  thus their present ages are 36 & 21
• 10 years agoHelpfull: Yes(0) No(1)
• let Kathy present age is x
  Kathy Julie
  x x+21
  
  After 6 years
  
  2(x+6) x+27
  
  2x+12 = x+27
  x = 15
  
  Julie = 36
  Kathy = 15
• 10 years agoHelpfull: Yes(0) No(0)
• let Kathy present age is x
  Kathy | Julie
  x | x+21
  
  After 6 years
  
  2(x+6)| x+27
  |
  2x+12 = x+27
  x = 15
  
  Julie = 36
  Kathy = 15
  
• 10 years agoHelpfull: Yes(0) No(0)